JPH0223563A - Flexible disk device - Google Patents

Abstract

PURPOSE:To remove produced ground dust so that a disk cassette can be loaded/unloaded easily by providing a rotary brush which operates in an interlocking way with disk cassette loading/unloading operation at a prescribed cassette loading position before a drive lever which releases the cassette. CONSTITUTION:A rotary brush 14 which is used for removing ground dust which is produced as a result of sliding friction between a driving lever 4 and window plates 13 of a disk cassette 11 and adhered to the lever 4 and plates 13 is provided inside a cassette holder 3 in the main body of this device so that the brush 14 can be positioned before the lever 4. The brush cleans the contacting surfaces of the plates 13 and lever 4 whenever the cassette 11 is loaded/unloaded in an interlocking way with the loading/unloading operations. Therefore, the lever 4 can smoothly load/unload the cassette because the frictional load when the lever is pinched between the window plates of the disk cassette can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a flexible disk device that allows smooth insertion and removal of a disk cassette.

(Prior Art) Figures 5 to 8 show the FDD main body in a conventional device, and in Figure 2, (1) is a head support device I that moves along a guide rod (2), and <3> is in Figure 7. The disk cassette 0 of is held therein, and the head ° support R is
Cassette holder for raising and lowering the upper head of the to, (4
) is a drive lever that opens and closes the window U of the disk cassette αD, and (5) is a biasing spring for this drive lever (4).

f6) c) With the elevating mechanism of the above cassette holder (3),
Cam (6a), Bokun (6b), Guide groove (6)
C). (d) is the biasing spring of the lifting mechanism (6), (8) is the latch lever (9) that works to prevent the lifting mechanism (6) from lowering, is the biasing spring of this latch lever (8), αO The guide (10a) of the above-mentioned lifting mechanism (6) is installed in nine frames with images of each of the above-mentioned parts. Further, [13 is a magnetic disk in the disk cassette aυ.

Next, the operation will be explained. The above head support device 11
1) When unloading, use the cassette holder (3) above.
is lifted up to the state shown in FIGS. 6 and 7, and the upper head and lower head are located apart. When the disk cassette I is inserted into the cassette holder (3) in this state, the window plate (11) is pushed open by the collision caused by the rotation of the drive lever (4), and then the elevating mechanism (6) is pushed open. ) is preventing the lowering of the latch lever (8)
is released, and the lifting mechanism (6) releases its biasing spring (
7) K slides along the guide (108), and at the same time the cassette holder (3) slides along the cam (6a) of the elevating mechanism (6) to the head support device t.
Is (1) possible to write to and read from the internal storage disk 13? descend to t.

At this time, the drive lever (4) pushes open the window plate α3, and as shown in FIG. When lifting the cassette αη, press the button (6b) to slide the elevating mechanism (6) and raise the cassette holder (3).

When the latch lever (8) is pressed until it stops the lifting mechanism (6) from lowering (61), the latch lever (8) is activated by the biasing spring (9). The disk cassette U is pushed out by the rotational force, and the drive lever (4) is restored accordingly, thereby closing the window plate α3.

[Problem to be solved by the invention]

Since the conventional flexible disk device is constructed as described above, the drive lever (4) and the window plate f! The sliding friction with 3 generates powder, which adheres to the drive lever (4) K, and this drive lever (4) is inserted into the window plate (13Ifc) of the disk cassette aυ, making sure that there is a large This is due to the frictional load, which is causing the problem of worsening the slippage of the disc cassette αD.

This invention seems to solve the above problems.

The purpose is to prevent the generated cutting powder from adhering to the window plate and its drive lever +C.

[A precautionary measure to solve the problem]

In the case of this invention, inserting a disk cassette.

A rotary brush that is linked to the lifting operation is installed in the back of the cassette holder so that it is in front of the drive lever of the window plate, and removes the fine grinding powder that adheres to the window plate and drive lever. I try to remove it with a moving brush.

[Effect]

In the case of this invention, the rotating brush that is linked to the insertion/removal operation of the disk cassette removes the shavings adhering to the window plate of the disk cassette and its drive lever each time.

〔Example〕

An embodiment of this invention will be described below. That is, in Figs. 1 to 4, the same parts as in the conventional one are given the same reference numerals, and redundant explanation will be omitted. In Fig. 2, I indicates the drive lever (4) and the window plate of the disk cassette αυ. This is a rotary brush for removing the shavings caused by sliding friction with the grout and attached to these.This rotary brush I is positioned in front of the drive lever (4) so that the IPDD
It is provided at the back of the cassette holder (3) in the main body,
The contact surface between the window plate 0 and the drive lever (4) is cleaned each time the disk cassette r1rJ is inserted or removed.

That is, when the disc cassette 111 is inserted into the cassette holder (3), the rotating brush I in this invention is pushed by its tip and rotates, and the brush at the free end engages the drive lever (4). Remove the finely ground powder adhering to the abutting surface of window plate 0. When the nine-disk force av is used, the drive lever (4) and the window plate 113, which are restored to their original state, are stroked in the opposite direction to the above to remove the shavings adhering to them.

At this time, please note that the above-mentioned rotating 11-hair I is equipped with a biasing spring (IS is also unique in that it works in a direction that encourages the removal of the disk cassette (lυ). Other than that, the operation of the flexible disk device as a whole is the same as the conventional one.

Note that cleaning with the rotating brush F14IC can be done by cleaning only one of the disk cassette window plate and its drive lever (4), but it is important to remove the grinding powder that adheres to both each time the disk cassette is inserted or removed. Of course, it would be even better to do so.

〔Effect of the invention〕

The flexible disk device of the present invention is configured as described above, and the generated cutting powder is removed each time, so the drive lever is inserted between the window plate of the disk cassette, By reducing the frictional load at that time, the disk cassette can be smoothly inserted and removed.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an FDD main body showing an embodiment of the flexible disk device of the present invention, Fig. 2 is a front view thereof, Fig. 3 is a side view thereof, and Fig. 4 is an enlarged view of the main parts of Fig. 1. The plan view, FIG. 5, shows F in a conventional flexible disk device.
A plan view of the DD main body. Figure 6 is its front view, Figure 7 is its side view, and Figure 8 is '
? This is an enlarged planar layer of the main part of Fig. 45. In the figure, (3) is the cassette holder, (4) is the drive lever +, to) is the disk cassette, and 13 is the quick disk. A3 is a plate, (I4 is a rotating brush. Other same numbers in the drawings indicate the same parts.

Claims (1)

[Claims] A disk cassette having an opening/closing window plate that exposes an internal magnetic disk, a cassette holder that locks the disk cassette at a predetermined insertion position, and a window plate provided at the back of the cassette holder at the predetermined insertion position of the disk cassette. A drive lever is provided on the front side of the drive lever to clean the contact surface between the window plate and the drive lever in conjunction with the insertion/removal operation of the disk cassette. A flexible disk device characterized by having brushes arranged opposite each other.